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/*
* sound-plugin-hal-clovertrail
*
* Copyright (C) 2013 Intel Corporation. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <alsa/asoundlib.h>
#include <errno.h>
#include <string.h>
#include <mm_debug.h>
#include <mm_error.h>
const char * card = "hw:3";
typedef struct {
snd_ctl_elem_info_t *info;
snd_ctl_elem_id_t *id;
snd_ctl_elem_value_t *control;
}snd_stack_t;
static int prepare_snd_ctl_by_name(snd_ctl_t *handle, snd_stack_t *stack,
snd_ctl_elem_type_t *type, unsigned int *count, const char* name)
{
int err = 0;
memset(stack->id, 0, snd_ctl_elem_id_sizeof());
memset(stack->info, 0, snd_ctl_elem_info_sizeof());
memset(stack->control, 0, snd_ctl_elem_value_sizeof());
/* Set interface */
snd_ctl_elem_id_set_interface(stack->id, SND_CTL_ELEM_IFACE_MIXER);
if (NULL != name)
snd_ctl_elem_id_set_name(stack->id, name);
/* init info id */
snd_ctl_elem_info_set_id(stack->info, stack->id);
/* get info */
err = snd_ctl_elem_info(handle, stack->info);
if (err < 0) {
debug_error("get info err : %s", snd_strerror(err));
return -1;
}
/* get type */
*type = snd_ctl_elem_info_get_type(stack->info);
/* get count */
*count = snd_ctl_elem_info_get_count(stack->info);
/* set value id */
snd_ctl_elem_value_set_id(stack->control, stack->id);
return 0;
}
static int prepare_snd_ctl(snd_ctl_t *handle, snd_stack_t *stack,
snd_ctl_elem_type_t *type, unsigned int *count, int numid)
{
int err = 0;
memset(stack->id, 0, snd_ctl_elem_id_sizeof());
memset(stack->info, 0, snd_ctl_elem_info_sizeof());
memset(stack->control, 0, snd_ctl_elem_value_sizeof());
/* Set interface */
snd_ctl_elem_id_set_interface(stack->id, SND_CTL_ELEM_IFACE_MIXER);
if (numid > 0)
snd_ctl_elem_id_set_numid(stack->id, numid);
/* init info id */
snd_ctl_elem_info_set_id(stack->info, stack->id);
/* get info */
err = snd_ctl_elem_info(handle, stack->info);
if (err < 0) {
debug_error("get info err : %s", snd_strerror(err));
return -1;
}
/* get type */
*type = snd_ctl_elem_info_get_type(stack->info);
/* get count */
*count = snd_ctl_elem_info_get_count(stack->info);
/* set value id */
snd_ctl_elem_value_set_id(stack->control, stack->id);
return 0;
}
static int sound_card_hw_io(int set_flag, snd_ctl_t *handle, snd_stack_t *stack,
snd_ctl_elem_type_t *type, unsigned int *count, int value, int *out_val)
{
unsigned int idx;
long tmp;
int err = 0;
if (!set_flag) {
/* read element */
err = snd_ctl_elem_read(handle, stack->control);
if (err < 0) {
debug_error("read element err :%s", snd_strerror(err));
return -1;
}
for (idx = 0; idx < *count && idx < 128; idx++) {
switch (*type)
{
case SND_CTL_ELEM_TYPE_BOOLEAN:
*out_val = snd_ctl_elem_value_get_boolean(stack->control, idx);
break;
case SND_CTL_ELEM_TYPE_INTEGER:
*out_val = snd_ctl_elem_value_get_integer(stack->control, idx);
break;
case SND_CTL_ELEM_TYPE_INTEGER64:
*out_val = snd_ctl_elem_value_get_integer64(stack->control, idx);
break;
case SND_CTL_ELEM_TYPE_ENUMERATED:
*out_val = snd_ctl_elem_value_get_enumerated(stack->control, idx);
break;
case SND_CTL_ELEM_TYPE_BYTES:
*out_val = snd_ctl_elem_value_get_byte(stack->control, idx);
break;
default:
debug_error("Unknown control element type");
return -1;
}
debug_log("Read alsa element, idx=%d out_val=%d\n", idx, *out_val);
}
} else {
/* set value */
tmp = value;
for (idx = 0; idx < *count && idx < 128; idx++)
{
switch (*type)
{
case SND_CTL_ELEM_TYPE_BOOLEAN:
snd_ctl_elem_value_set_boolean(stack->control, idx, tmp);
break;
case SND_CTL_ELEM_TYPE_INTEGER:
snd_ctl_elem_value_set_integer(stack->control, idx, tmp);
break;
case SND_CTL_ELEM_TYPE_INTEGER64:
snd_ctl_elem_value_set_integer64(stack->control, idx, tmp);
break;
case SND_CTL_ELEM_TYPE_ENUMERATED:
snd_ctl_elem_value_set_enumerated(stack->control, idx, tmp);
break;
case SND_CTL_ELEM_TYPE_BYTES:
snd_ctl_elem_value_set_byte(stack->control, idx, tmp);
break;
default:
debug_error("Unknown control element type");
return -1;
}
debug_log("Write alsa element, idx=%u value=%ld\n", idx, tmp);
/* Write element */
err = snd_ctl_elem_write(handle, stack->control);
if (err < 0) {
debug_error("snd_ctl_elem_write err: %s", snd_strerror(err));
/* Close sound control */
return -1;
}
}
}
return 0;
}
static int sound_card_ctrl_get(int numid, int *out_val)
{
snd_ctl_t *handle = NULL;
snd_stack_t stack;
snd_ctl_elem_type_t type;
unsigned int count;
int err = 0;
snd_ctl_elem_id_alloca(&(stack.id));
snd_ctl_elem_info_alloca(&(stack.info));
snd_ctl_elem_value_alloca(&(stack.control));
err = snd_ctl_open(&handle, card, 0);
if (err < 0) {
debug_error("control %s open err: %s", card, snd_strerror(err));
return -1;
}
err = prepare_snd_ctl(handle, &stack, &type, &count, numid);
if (err < 0) {
debug_error("prepare hw err:%d", err);
goto error;
}
err = sound_card_hw_io(0, handle, &stack, &type, &count, 0, out_val);
if (err < 0) {
debug_error("ctl hw io err:%d", err);
goto error;
}
snd_ctl_close(handle);
return 0;
error:
snd_ctl_close(handle);
return -1;
}
int sound_card_ctrl_set_by_name(const char *name, int value)
{
snd_ctl_t *handle = NULL;
snd_stack_t stack;
snd_ctl_elem_type_t type;
unsigned int count;
int err = 0;
snd_ctl_elem_id_alloca(&(stack.id));
snd_ctl_elem_info_alloca(&(stack.info));
snd_ctl_elem_value_alloca(&(stack.control));
err = snd_ctl_open(&handle, card, 0);
if (err < 0) {
debug_error("control %s open err: %s", card, snd_strerror(err));
return -1;
}
err = prepare_snd_ctl_by_name(handle, &stack, &type, &count, name);
if (err < 0) {
debug_error("prepare hw err:%d", err);
goto error;
}
/* set value */
err = sound_card_hw_io(1, handle, &stack, &type, &count, value, NULL);
if (err < 0) {
debug_error("ctl hw io err%d", err);
goto error;
}
snd_ctl_close(handle);
return 0;
error:
snd_ctl_close(handle);
return -1;
}
int sound_card_ctrl_set(int numid, int value)
{
snd_ctl_t *handle = NULL;
snd_stack_t stack;
snd_ctl_elem_type_t type;
unsigned int count;
int err = 0;
snd_ctl_elem_id_alloca(&(stack.id));
snd_ctl_elem_info_alloca(&(stack.info));
snd_ctl_elem_value_alloca(&(stack.control));
err = snd_ctl_open(&handle, card, 0);
if (err < 0) {
debug_error("control %s open err: %s", card, snd_strerror(err));
return -1;
}
err = prepare_snd_ctl(handle, &stack, &type, &count, numid);
if (err < 0) {
debug_error("prepare hw err:%d", err);
goto error;
}
/* set value */
err = sound_card_hw_io(1, handle, &stack, &type, &count, value, NULL);
if (err < 0) {
debug_error("ctl hw io err%d", err);
goto error;
}
snd_ctl_close(handle);
return 0;
error:
snd_ctl_close(handle);
return -1;
}
int set_dual_out(void )
{
int err = 0;
int headset_route;
debug_fenter();
/* set dual out */
/*SPK Amp Switch: off*/
sound_card_ctrl_set(81, 0);
/*SPKLO Amp Switch: on*/
sound_card_ctrl_set(79, 1);
/*EAR Amp Switch: off*/
sound_card_ctrl_set(80, 0);
/*HP Amp Switch: off*/
sound_card_ctrl_set(83, 1);
debug_log("CLV: set dual out successfully");
debug_fleave();
return 0;
}
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